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[tor-bugs] #1839 [BridgeDB]: Rotate available bridges over time
#1839: Rotate available bridges over time
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Reporter: arma | Owner:
Type: enhancement | Status: new
Priority: normal | Milestone:
Component: BridgeDB | Version:
Keywords: | Parent:
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We need to design a new algorithm for deciding which bridge addresses to
give out in response to a given query. The result of this algorithm should
be that only a small fraction (e.g. 20%) of the bridges in the https or
gmail bucket are available at a given time, and we rotate to a new
fraction each week.
Benefits: a) an adversary who does a high-intensity push to enumerate
bridges can't get them all in one week now matter how hard the push, and
b) if you learned your bridge last week, the enumerating adversary won't
find it this week.
This task depends on #1606 (bridgedb spec), since I don't have a good
handle on what we're doing now, so I don't know what needs to change to
get there.
And finally, we're going to need to improve Vidalia's "who has used my
bridge" interface to explain to the users what's going on, so they don't
see zero usage and turn off their bridge.
--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/1839>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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